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Diesel Water in Fuel WiF Sensor with Drain Valve Fuel Filter Sensor Compatible with Chevy Silverado 2500 3500 GMC Sierra 2500 3500 2001-2011 GM 6.6L Duramax LB7 LLY LBZ LMM LM1 Replace#12639277

Diesel Water in Fuel WiF Sensor with Drain Valve Fuel Filter Sensor Compatible with Chevy Silverado 2500 3500 GMC Sierra 2500 3500 2001-2011 GM 6.6L Duramax LB7 LLY LBZ LMM LM1 Replace#12639277

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Availability checked 2026-09-07 · current price shown on Amazon

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Diesel Water in Fuel WiF Sensor with Drain Valve Fuel Filter Sensor Compatible with Chevy Silverado 2500 3500 GMC Sierra 2500 3500 2001-2011 GM 6.6L Duramax LB7 LLY LBZ LMM LM1 Replace#12639277. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.

Key Features

  • Reliable fuel delivery
  • Supports higher power
  • Direct-fit hardware
  • Protects the injection system

Best for: Reliable fueling at stock or elevated power

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Diesel Water in Fuel WiF Sensor with Drain Valve Fuel Filter Sensor Compatible with Chevy Silverado 2500 3500 GMC Sierra 2500 3500 2001-2011 GM 6.6L Duramax LB7 LLY LBZ LMM LM1 Replace#12639277

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